This is a couple of elements without any gr.Group. Form elements naturally group together anyway.

0 100

This is the same set put in a gr.Group.

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Now in a Row, no group.

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Now in a Row in a group.

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Several rows grouped together.

Several columns grouped together. If columns are uneven, there is a gray group background.

Dropdown
Dropdown

container=False removes label, padding, and block border, placing elements 'directly' on background.

Radio

Textbox, Dropdown, and Number input boxes takes up full space when within a group without a container.

Dropdown

More examples

Radio
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Dropdown
Dropdown